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Sweet sound in small spaces

If your bookshelf speakers are yearning for a versatile, compact integrated amp, check out the TEAC AI-301DA. It's a great choice for a bedroom or office where ho-hum sound just isn't going to do it for you. Conservatively rated at 22 watts per channel, this little amp is poised to impress. Plus, it offers analog and digital connections, so you can play music from a wide variety of sources such as disc players, a TV, or a computer.

Pristine playback from your computer and other digital sources

It's easy to feed your digital music to this amp. Connect your computer via the asynchronous USB input and enjoy your entire library of digital tunes through your favorite speakers. The AI-301DA is compatible with high-resolution files, including DSD files and 24-bit/192kHz PCM files. An audiophile-quality Burr-Brown digital-to-analog converter (DAC) makes the most of them, for outstanding levels of detail and dynamic range. (Those MP3s will sound pretty good, too.) Optical and coaxial digital audio inputs let you connect other sources like a TV, CD or Blu-ray player, or a network streaming device like a Sonos CONNECT.

Bluetooth on board for smartphone streaming

Wired connections aren't the only way to enjoy digital music with this amp. Stream tunes wirelessly from your smartphone or tablet thanks to built-in Bluetooth. You can listen to music stored on your device, streamed from online music services like Pandora® and Spotify®, and from YouTube™ and other apps. The AI-301DA is also compatible with aptX™, for sound quality that's as good as Bluetooth gets when streamed from an aptX compatible device.

Highlights:

22 watts x 2 into 8 ohms (20-20,000 Hz) at 0.1% THD

asynchronous USB input for music playback from a computer (requires free driver download for Windows® computers)

plays high-resolution digital music files from your connected computer (PCM files up to 24-bit/192kHz; DSD files up to 5.6MHz)

built-in Bluetooth for wireless music streaming from compatible smartphones, tablets, and computers

Everything you always wanted in a stereo receiver, except the radio

An integrated amplifier is essentially a receiver without a built-in AM/FM tuner. You get power to drive your speakers, audio controls, and inputs for music source components. Connect an iPod, a computer, a network music player, or any other device that can play Internet radio, and you may find you have no need for an AM/FM radio.

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Nice little amp

Nice little amp. If space is a concern, this amp will do fine. Doesn't quite have the oomph of my mid-70s Kenwood that the Teac replaced. But, it doesn't have to fill the same kind of space. So, it'll do. Wish it came with a built-in phono pre-amp for the price, though.

Excellent value

Offers a lot of quality features in an affordable, small footprint. Amp seems especially detailed and clean, like the better quality digital amps. I'd say overall has an overall warm presentation which I like but for the headphine amp found it somewhat too much of a good thing when paired with my grados.

Pros:Great value, very versatile

Cons:Slightly less detailed, but may be s good thing with lossy files.

Excellent Little Amp

Replaced a really old Yamaha receiver with this TEAC Amp. I am running Bowers & Wilkins CM5 speakers and this amp sounds great! It was a debate between the NAD and TEAC and basically the price was the deciding factor here. The number of inputs, remote control, sound quality and size factor made this a perfect combo. I gave my AppleTV connected to the optical input and now have complete control using the Harmony Remote App and Airplay. I didn't even mess with the bluetooth option.

It Works

I got this to replace an old (20 years) component system. A bunch of parts were replaced with this one box. It works fine. With my old tower speakers, the sound fills the room. The bluetooth link seems to drop out some when my macbook pro (2008 era) is more then around 10ft, but I've had that problem with other bluetooth speakers, so it may be a macbook issue. Not sure. It doesn't have a lot of inputs (2 RCA, 1 digital, 1 USB, and 1 bluetooth) but I don't have a lot of potential sources, so I'm fine.

The remote control works fine, and it not cluttered with a gazillion useless buttons.

Powerful and versatile little amplifier

I looked at several different mini integrated amplifiers and actually purchased a NuForce DDA-120 amplifier from another electronics seller on the Internet and was very disappointed by its extremely grainy and harsh sound. I tried it with several different speakers and all had the poor, grainy sound. I assumed it was a defective unit and sent it back to the seller for a refund. At this time, I noticed the Teac AI-301DA on sale at Crutchfield and with a $100 rebate, too. So, at less than half the overall cost (with rebate) of the NuForce amp, I purchased the Teac amp and received a very clear, clean, detailed little amplifier that actually fits my needs much better with its multiple analog inputs along with the several digital inputs. Currently, I have it powering a pair of efficient BIC bookshelf speakers with it connected by the coaxial digital input from a Sony CD player, and the sound coming from them is as good as I have ever heard. It has plenty of power to drive these speakers to an extremely loud volume. The soundstage is very good and the sounds are distinct and easily located, not at all smeared and hard to distinguish the instruments and vocals locations. In fact, on a few cd's I am hearing some things I haven't heard before. But the one feature I really like is the auto "on" and "off" feature via the digital inputs. I can just start the CD player playing a disc and it automatically turns on and amplifies the music. Nice little amp.

Pros:Auto "on" and "off" features via the digital inputs. Clean, pretty powerful sound for its size.

Better than expected

I was not sure what to expect as this integrated amp has a rating of 20 watts of power output. I have a number of other high end audio gear that is have invested in and collected. I needed a device with a small form factor that would fit into a wall unit. My goal was to power a pair of older inefficient floor standing speakers. I connected a SurfacePro2 with docking station as my audio source as I am a Spotify premium user as well as a digital optical out of my large screen TV. The room is a 15' by 20'. I initially purchased a Micro Audio system and the sound was like a boom box with low fidelity. Crutchfield advertised a 30 day return policy so I figured I would give the amp a try. I plugged it in setup was easy and that was it. Once I turned it on I was sold. The sound was rich and full. The power and overall volume of this amp is outstanding. It powered my old inefficient speakers easily and the base is powerful and more than sufficient. I have a sub I was planning on using and after a little while of listening I decided I did not need it. The USB digital direct connection was another surprise. The premium sound from Spotify is near HD Audio quality, just don't forget to select the HQ setting in Spotify premium. Crutchfield shipped the item quickly and the order was a very easy process. Overall the was a premium transaction, great price and amazing product.

Great Value at Sale Price

I have been looking of a versatile digital amp for sometime. I love the connection flexibility that the TEAC AI 301DA offers. (usb, optical, BT, plus two analog) Paired with relatively sensitive speakers this amp really preforms well. (Klipsch RB 61 ii), but also sounds great with a pair of 30 year old Realistic bookshelf speakers i had laying around. Do not be swayed by the low watt rating, you get terrific sound quality, as loud as would ever need. Sounds great with Spotify. sub out alos a plus

Pros:Compact
Attractive and well built
Sound quality is great
A great value at current sale price +rebate
Subwoofer output

TEAC AI-301DA

I've owned the TEAC A-H01 for the last year basically to power a pair of Polk Audio in-wall speakers in our living room. Used mainly for background music at dinner parties, etc., the A-H01 fit the bill perfectly except perhaps for bass response which is a tad anemic. I've replaced the A-H01 with the AI-301DA for 2 reasons - 1) the remote on the A-H01 lacks an on/off function which makes it awkward to use with a universal remote and 2) the AI-301DA features Bluetooth otherwise, I suspect that the internal are similar if not identical in all other respects.

Pros:Small and light form factor, substantial sound field for a diminutive integrated amp.

Good sound but poor QC

I bought this for a bedroom system and really wanted to like it. The first unit I received had a loud buzz over the headphone jack and a softer buzz over the speakers. Touching the case anywhere would reduce the noise - so it seemed like a grounding / switching power supply issue - all other audio equipment using the same electric outlet have no problem. The unit was now out of stock, so Crutchfield sent me a new unit once back in stock. First thing I did with unit #2 was try the headphones and then the speakers - dead silent - great sound. Fantastic sound when streaming for my macbook over bluetooth. Then I switched to my iPhone, still great sound - then I tried to adjust the volume from my iPhone - no adjustment, it would just go from full volume to off.

Then tried the following: 1) unpair / repair the iPhone from unit #2 - still did not work - My iPhone works fine with the 5+ other bluetooth devices 2) reboot phone 3) tried above 3-4 times 4) paired an iPad to unit #2 - still no volume control 5) reconnected from my macbook - volume control works fine on unit #2 6) pulled unit #1 out again - volume control works under all conditions (iPhone, iPad, mac)

The manual also says that the Teac remote supports controlling the bluetooth device (ff, rw, play, pause) via AVRC but this did not work on either unit. This same capability works fine in my car.

So back to Crutchfield for unit #2 - now willing to role the dice again, I'm going to try the NAD D3020 now.

Pros:nice looking, great size. I was able to verify support for ACC codec by doing a bluetooth packet capture. Great sound on unit #2 More than enough power for some stand mount speakers (wharefdale diamond) - I'm impressed with ICEpower on the unit without the buzz.

Cons:Poor quality on the two units I tried - just unlucky perhaps? If you don't need bluetooth, you may be fine.

OK For Limited Budget Solution

This integrated represents a good value when bought at recent sale prices. That said, there is a noticeable bump in the mid range and softness in both the lower bass and upper treble regions from this unit. Vocals, in particular, are overemphasized and forward while there is a noticeable lack of oomph in the lower bass (compared to my reference external Sabre ESS DAC via one of the Teac's analog inputs). The upper treble region lacks full extension so upper frequency details are simply missing from content that contains it. On the plus side, the amp section is punchy and outputs a surprising amount of power for its rating. I was able to easily drive my inefficient Magnepan .7 (4 Ohm) speakers to room filling volume. The amp delivers plenty of detail and resolution and the soundstage and sense of depth reproduction is also surprisingly impressive. That said, music sounds a little "hard" or electronic due to the over emphasized mids and soft bass and treble response. All in all, if you are on a strict budget and looking for an all-in-one integrated that includes Bluetooth, then this little guy is a solid choice at the current sale price. If the price moves up closer to the NAD 3020D, then you probably should consider the NAD for the more musical/naturally sounding DAC and amp (but you will be giving up the Teac's hi res capabilities via the USB input!).

Pros:Punchy amp delivers power beyond its modest rating
Great Depth and Soundstage with Etched Resolution
Aptx Bluetooth
Support for DSD
All-in-One Solution for a Reasonable Price

Product Research

Features

Class-D Amplifier Circuit: The power amplifier stage is based upon a
tried and tested Class-D amp, manufactured by ICEpower of Denmark. It converts a
high-resolution sound source into high-definition speaker signals using a
feedback loop between a hybrid feedback controlled oscillating modulator (HCOM)
which faithfully amplifies the signal, and a multivariable enhanced cascade
control (MECC). The efficient design of the 43W + 43W (4Ω)
or 22W + 22W (8Ω) amplifier creates
very little heat, eliminating any need for a cooling fan, thus affording a quiet
environment that's ideal for musical appreciation.

Burr Brown DAC: The TEAC AI-301DA uses a Burr Brown 1795 DACs
for high performance and support of a wide range of digital audio sources. Its
three digital inputs (optical/coaxial/USB) support sampling rates of 32, 44.1,
48, 88.2, 96, 176.4, and 192kHz. It's ideal for playback of FLAC, WAV, Apple
Lossless, and other high-resolution file formats. It is capable of 32-bit
processing and even has the capacity to process 2.8/5.6MHz DSD data, for
faithful and accurate playback of high-resolution sound sources.

Asynchronous USB Input: The TEAC AI-301DA features a USB
(type-B) port for connecting your Windows PC or Mac computer. The AI-301DA accepts
digital audio source material stored on your computer at up to 32-bit/192kHz.
When receiving digital audio signals from a computer via USB cable, the unit can
operate in asynchronous mode, controlling the timing of the input signal using
the AI-301DA's internal clock. With asynchronous transmission over USB, signal
compromising jitter is effectively eliminated, allowing digital audio signals to
be transmitted in a pure, unadulterated state. This allows optimal playback of
high-resolution digital audio files from playlists/libraries in your iTunes,
Windows Media Player, or similar playback programs on your computer.

HR Audio Player App (for Windows & Mac): The
TEAC HR Audio Player is a free application software download to help you
playback and enjoy your high-resolution audio files on your Windows or Mac
computer with ease through the TEAC AI-301DA and connected speakers.
The TEAC HR Audio Player allows you to listen to your audio as soon as you
connect the TEAC AI-301DA and install the application; simply drag-and-drop the
music files on your computer into the window of the application. Various
high-resolution audio files formats are supported, including DSD
(2.8MHz/5.6MHz), PCM (44.1-192kHz; 16-32-bit), and FLAC (44.1-192kHz;
16-32-bit), plus compressed music files like MP3 (32-320kbps). You can even
choose between ASIO2.1 and DoP (DSD over PCM) modes when playing back DSD files
from your Windows PC. In order to maximize the connected unit's performance, a
simplified screen of the TEAC HR Audio Player helps reduce CPU load time while
data processing. Furthermore, the RAM Buffer Playback mode that stores the
audio data onto the internal memory is supported for the ultimate digital audio
playback conditions. Additional features include Playlist, Repeat, and Shuffle
playback.

Analog Inputs: The TEAC AI-301DA features two sets of stereo
RCA inputs for connecting an external analog audio source, such as your CD
player, Tuner, or Tape Deck.

Built-in Bluetooth w/ aptX: The TEAC USB DAC amplifier features
built-in Bluetooth (version 2.1 + EDR) with support for A2DP, AVRCP, and aptX. You'll
be able to stream stored music and music apps from your Bluetooth-enabled Apple
iPod/iPhone, iPad, Android smartphone/tablet, Windows PC, Mac computer, or other
Bluetooth-compatible devices to the TEAC AI-301DA. You'll also be able to
control basic music playback functions (Play/Pause & Previous/Next Track) from
the included IR remote. The USB DAC amplifier evens employs aptX audio coding
technology for lossless, CD-quality streaming with compatible AptX-compatible
phones (like some Androids). Up to 8 devices can be paired with the AI-301DA,
but only one device can be used at a time.

Note: Due to the differences in Bluetooth technology, some
Bluetooth enabled devices may be incompatible, function improperly, or may not
support all features when used with the TEAC AI-301DA.

Note: Combine the AI301-DA USB DAC amplifier with TEAC's LS-301 coaxial
loudspeakers (sold separately). The LS-301 speakers have been specifically developed to match
the AI301-DA to create a system that does full
justice to any high-resolution audio source.

Sub Output: The TEAC USB DAC amplifier is fitted with a single
mono-RCA output for connecting a powered subwoofer. There is no built-in
crossover in the AI301-DA. You will need to use the built-in low-pass crossover
of your powered sub.

Headphone Amplifier: The TEAC AI-301DA features a built-in
headphone amplifier and front-panel 1/4" headphone jack that will accept
headphone impedances from 8 to 600-ohms. The 100mW + 100mW output (at 32-ohms
load) headphone amplifier uses CCLC (Coupling Capacitor Less Circuit)
technology. In conventional headphone output circuits, a capacitor is used for
output-stage coupling, and so the sound is unavoidably colored. When the
capacitor is combined with a high-pass filter this often results in phase lags,
or low frequency level degradation. With CCLC the negative impact of capacitors
on sound quality is eliminated, providing full low-frequency sound and a
responsive headphone listening environment with great spatiality.

All-Metal Chassis: The TEAC AI-301DA features a compact
chassis with aluminum panels and a motor-driven volume knob with the tactile
feel you'd expect from controls found in high end full-size hi-fi components.
The solid all-metal chassis is impressively inert, minimizing the effects of
vibration on the unit's sound quality.

Auto Power On: The AI-301DA has an Auto Power On function which
automatically switches on the amplifier's power when it senses a digital signal
input. When the amplifier is connected to optical digital audio output from a
television set, just switching on the television turns on the power of the
AI-301DA, enabling you to immediately enjoy high-quality sound without having to
adjust any other settings. This facility makes life very convenient allowing you
to switch on the TV and instantly listen to music or a soundtrack.

Auto Power Down: If there is not signal from the selected input source
and no operation has occurred for approximately 30 minutes, the USB DAC
amplifier will enter standby mode. Power consumption in standby mode is 0.5W or
less.

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find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
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